Consider the Following Code Snippet: Public Class ClickListener Implements ActionListener

question 49

Multiple Choice

Consider the following code snippet: public class ClickListener implements ActionListener
{
Public void actionPerformed(ActionEvent event)
{
System.out.println("I was clicked.") ;
}
}
Public class ButtonTester
{
Public static void main(String[] args)
{
JFrame frame = new JFrame() ;
JButton button = new JButton("Click me!") ;
Frame.add(button) ;
ActionListener listener = new ClickListener() ;
Button.addActionListener(listener) ;
) ..
}
}
Which of the following statements is correct?

• A) Class ButtonTester is an interface type.
• B) A ClickListener object can be added as a listener for the action events that buttons generate.
• C) Class ClickListener is an interface type.
• D) Class ButtonTester implements an interface type.

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